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Word: operation (lookup in dictionary) (lookup stats)
Dates: during 176534-176534
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Word Time Machine

Normalized population density for word "operation" throughout decades:

1870s : 0.3784
1880s : 0.6147
1890s : 0.4453
1900s : 0.6054
1910s : 1.3697
1920s : 1.0250
1930s : 1.1017
1940s : 1.1526
1950s : 1.2965
1960s : 1.2914
1970s : 1.1620
1980s : 1.0743
1990s : 0.8010
2000s : 0.7438
2010s : 0.6855